<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1.0" />
    <title>dc-example</title>
    <script src="/libs/dc-sdk/dc.min.js"></script>
    <link href="/libs/dc-sdk/dc.min.css" type="text/css" rel="stylesheet" />
    <link href="../index.css" type="text/css" rel="stylesheet" />
  </head>

  <body>
    <div id="viewer-container" class="viewer-container"></div>
    <script>
      const generatePosition = (num) => {
        let list = []
        for (let i = 0; i < num; i++) {
          let lng = 120.38105869 + Math.random() * 0.05
          let lat = 31.10115627 + Math.random() * 0.05
          list.push({ lng, lat })
        }
        return list
      }

      DC.config.baseUrl = '../libs/dc-sdk/resources/'
      let viewer = new DC.Viewer('viewer-container')
      let baseLayer = DC.ImageryLayerFactory.createImageryLayer(
        DC.ImageryType.AMAP,
        {
          crs: 'WGS84',
        }
      )
      viewer.addBaseLayer(baseLayer, {
        brightness: 0.1,
      })
      viewer.flyToPosition(
        '120.58464690,30.57441821,35840.6299288431,5.80,-27.24',
        () => {
          let layer = new DC.HeatMapLayer('layer', {})
          layer.setPoints(generatePosition(10000))
          viewer.addLayer(layer)
          let layer2 = new DC.HeatMapLayer('layer2', { height: 4000 })
          layer2.setPoints(generatePosition(10000))
          viewer.addLayer(layer2)
        }
      )
    </script>
  </body>
</html>
